﻿using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
//引入如下命名空间
using System.Collections.Generic;
using System.Text;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void btShow_Click(object sender, EventArgs e)
    {
        string str =TextBox1.Text.Trim();//获取汉字字符串
        lbShow.Text = "您查询的汉字的拼音简码为：\n" + Convert(str);
    }
    ///   <summary>   
    ///   获取一串汉字的拼音声母   
    ///   </summary>   
    ///   <param   name="chinese">Unicode格式的汉字字符串</param>   
    ///   <returns>拼音声母字符串</returns>   
    public static String Convert(String chinese)
    {
        char[] buffer = new char[chinese.Length];
        for (int i = 0; i < chinese.Length; i++)
        {
            buffer[i] = Convert(chinese[i]);
        }
        return new String(buffer);
    }
    ///   <summary>   
    ///   获取一个汉字的拼音声母   
    ///   </summary>   
    ///   <param name="chinese">Unicode格式的一个汉字</param>   
    ///   <returns>汉字的声母</returns>   
    public static char Convert(Char chinese)
    {
        Encoding gb2312 = Encoding.GetEncoding("GB2312");
        Encoding unicode = Encoding.Unicode;
        //将字符串转换成数组
        byte[] unicodeBytes = unicode.GetBytes(new Char[] { chinese });
        byte[] asciiBytes = Encoding.Convert(unicode, gb2312, unicodeBytes);
        //   计算该汉字的GB-2312编码   
        int n = (int)asciiBytes[0] << 8;
        n += (int)asciiBytes[1];
        //   根据汉字区域码获取拼音声母   
        if (In(0xB0A1, 0xB0C4, n)) return 'a';
        if (In(0XB0C5, 0XB2C0, n)) return 'b';
        if (In(0xB2C1, 0xB4ED, n)) return 'c';
        if (In(0xB4EE, 0xB6E9, n)) return 'd';
        if (In(0xB6EA, 0xB7A1, n)) return 'e';
        if (In(0xB7A2, 0xB8c0, n)) return 'f';
        if (In(0xB8C1, 0xB9FD, n)) return 'g';
        if (In(0xB9FE, 0xBBF6, n)) return 'h';
        if (In(0xBBF7, 0xBFA5, n)) return 'j';
        if (In(0xBFA6, 0xC0AB, n)) return 'k';
        if (In(0xC0AC, 0xC2E7, n)) return 'l';
        if (In(0xC2E8, 0xC4C2, n)) return 'm';
        if (In(0xC4C3, 0xC5B5, n)) return 'n';
        if (In(0xC5B6, 0xC5BD, n)) return 'o';
        if (In(0xC5BE, 0xC6D9, n)) return 'p';
        if (In(0xC6DA, 0xC8BA, n)) return 'q';
        if (In(0xC8BB, 0xC8F5, n)) return 'r';
        if (In(0xC8F6, 0xCBF0, n)) return 's';
        if (In(0xCBFA, 0xCDD9, n)) return 't';
        if (In(0xCDDA, 0xCEF3, n)) return 'w';
        if (In(0xCEF4, 0xD188, n)) return 'x';
        if (In(0xD1B9, 0xD4D0, n)) return 'y';
        if (In(0xD4D1, 0xD7F9, n)) return 'z';
        return '\0';
    }
    private static bool In(int Lp, int Hp, int Value)
    {
        return ((Value <= Hp) && (Value >= Lp));
    }
}
